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jeka57 [31]
3 years ago
14

What is the vertex if the graph of y=-x^2

Mathematics
1 answer:
Mrac [35]3 years ago
4 0
I think that 0 is the vertex
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Answer:

Possible lengths of the silk fibre 'x' are 100, 75, 60, 50 and 30 yards respectively.

Step-by-step explanation:

Let the length of the silk fiber = x yards.

Let the number of silk fibres = a.

It is given that the silk fibers between 3 to 10 yards are combined to form a silk thread of 300 yards.

So, we get the equation,

ax=300, where 3\leq a\leq 10

i.e. x=\frac{300}{a}, 3\leq a\leq 10

So, the possible values of 'a' are 3, 4, 5, 6 an 10.

Thus, the possible lengths of the silk fibre 'x' are 100, 75, 60, 50 and 30 yards respectively.

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2 years ago
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What is the value of x in the proportion (x - 1)/5 = (4x + 2)/35?
nirvana33 [79]

Answer:

x=3

Step-by-step explanation:

1. cross multiply to get

5(4x+2)= 35(x-1)

2. distribute

20x+10=35x-35

3. combine like terms

45=15x

4. divide :)

3=x

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This is the function f(x)= x2 − 4x + 6 .<br><br><br> What is the axis of symmetry?
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